CN112758845B - Counterweight displacement mechanism and working machine - Google Patents
Counterweight displacement mechanism and working machine Download PDFInfo
- Publication number
- CN112758845B CN112758845B CN202110097818.XA CN202110097818A CN112758845B CN 112758845 B CN112758845 B CN 112758845B CN 202110097818 A CN202110097818 A CN 202110097818A CN 112758845 B CN112758845 B CN 112758845B
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- counterweight
- mounting frame
- pin shaft
- weight
- matching part
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- 230000007246 mechanism Effects 0.000 title claims abstract description 27
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 20
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 230000013011 mating Effects 0.000 description 8
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
- B66C23/74—Counterweights or supports for balancing lifting couples separate from jib
- B66C23/76—Counterweights or supports for balancing lifting couples separate from jib and movable to take account of variations of load or of variations of length of jib
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/18—Counterweights
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention provides a counterweight displacement mechanism and a working machine, wherein the counterweight displacement mechanism comprises a frame, a turntable, a counterweight mounting frame, a counterweight and a jacking device, the turntable is provided with a head part and a tail part, and the head part is connected with the frame; the counterweight mounting frame is connected with the tail part in a rotatable and adjustable manner along an up-down axis, and is provided with a connecting part which is positioned at one side of the rotation axis of the counterweight mounting frame; the counterweight is provided with a matching part which is detachably connected with the connecting part; and the jacking device is used for driving the matching part to move up and down relative to the connecting part. According to the counterweight displacement mechanism and the working machine, the counterweight is detached from the counterweight mounting frame, after the counterweight mounting frame is rotated and adjusted, the counterweight is lifted to the counterweight mounting frame through the jacking device to be mounted, so that the counterweight can be moved and adjusted.
Description
Technical Field
The invention relates to the technical field of working machines, in particular to a counterweight displacement mechanism and a working machine.
Background
Currently, work machines (e.g., cranes) are mostly fixed counterweights, especially medium and small tonnage work machines. There is also a part of operation machinery that adopts the movable counterweight structure, and movable counterweight structure is provided with telescopic counterweight mounting bracket of taking drive arrangement mostly, and the counter weight is installed on telescopic counterweight mounting bracket, realizes whole car focus backward movement through telescopic counterweight mounting bracket to increase whole car stability. However, the existing movable counterweight structure has the problems of complex structure and large longitudinal space occupation, and can not meet the longitudinal space requirement during telescopic translation for large-tonnage working machines, especially for ultra-large-tonnage working machines.
Disclosure of Invention
The invention provides a counterweight displacement mechanism and an operation machine, which are used for solving the problems that a movable counterweight structure in the prior art is complex in structure and needs to occupy a large longitudinal space.
The invention provides a counterweight displacement mechanism, comprising:
a frame;
a turntable having a head portion and a tail portion, the head portion being connected to the frame, the head portion and the tail portion being opposed in a longitudinal direction of the turntable;
the counterweight mounting frame can be connected with the tail part in a rotating and adjusting manner along an up-down axis, and is provided with a connecting part which is positioned at one side of the rotating axis of the counterweight mounting frame;
the counterweight is provided with a matching part which is detachably connected with the connecting part; the method comprises the steps of,
and the jacking device is used for driving the matching part to move up and down relative to the connecting part.
According to the counterweight displacement mechanism provided by the invention, two counterweight mounting frames are arranged, and the two counterweight mounting frames are respectively arranged at two sides of the tail part in the width direction of the turntable;
the cooperation portion corresponds two the counter weight mounting bracket is provided with two, two cooperation portion respectively with two connecting portion can dismantle the connection.
According to the counterweight displacement mechanism provided by the invention, the connecting part and the matching part are detachably connected through the connecting pin shaft;
the connecting portion is provided with a first pin hole penetrating through the connecting pin shaft in a penetrating mode, and the matching portion is provided with a second pin hole penetrating through the connecting pin shaft in a penetrating mode.
According to the counterweight displacement mechanism provided by the invention, the counterweight mounting frame or the matching part is provided with the pin shaft bracket, the connecting pin shaft is provided with a first end and a second end which are opposite, and the first end of the connecting pin shaft is movably connected with the pin shaft bracket along the extending direction of the first pin hole;
when the matching part is positioned at a first position and the connecting pin shaft is positioned at a first pin shaft position, the second end of the connecting pin shaft penetrates through the first pin hole and the second pin hole, and the connecting part is connected with the matching part;
and under the condition that the connecting pin shaft is positioned at the second pin shaft position, the connecting part and the matching part are separated from the connecting pin shaft, and the connecting part and the matching part are separable.
According to the counterweight displacement mechanism provided by the invention, the counterweight mounting frame is provided with the abutting part, and the abutting part is positioned above the first pin hole;
the tip of the fitting portion abuts the abutting portion when the fitting portion is located at the first position, the first pin hole and the second pin hole being opposed to each other in an extending direction of the first pin hole;
the engagement portion is located below the abutment portion when the engagement portion is located at the second position.
According to the counterweight displacement mechanism provided by the invention, the abutting part is a positioning pin arranged along the extending direction of the first pin hole;
the top end of the matching part is provided with a V-shaped groove with an upward notch, and the V-shaped groove penetrates through the matching part in the extending direction of the second pin hole;
and under the condition that the matching part is positioned at the first position, at least part of the positioning pin stretches into the V-shaped groove, and the positioning pin abuts against two opposite side walls of the V-shaped groove.
According to the counterweight displacement mechanism provided by the invention, the jacking device is arranged on the rack and is positioned below the counterweight mounting frame; or,
the jacking device is arranged on the counterweight and is in power coupling connection with the matching part.
According to the counterweight displacement mechanism provided by the invention, the locking structure is arranged between the counterweight mounting frame and the tail part and used for limiting the rotation of the counterweight mounting frame under the condition that the counterweight mounting frame is rotationally regulated to a preset mounting position.
According to the present invention, there is provided a weight displacement mechanism, the lock structure comprising:
the connecting plate is connected with the tail part and arranged downwards, and a first limiting hole and a second limiting hole are arranged in the connecting plate in a penetrating manner; the method comprises the steps of,
the locking bolt is arranged along the rotation axis of the counterweight mounting frame and provided with a locking end facing the connecting plate and a connecting end facing away from the connecting plate, and the connecting end of the locking bolt is connected with the counterweight mounting frame through an elastic piece;
under the condition that the counterweight mounting frame is positioned at a first mounting position, the connecting part is close to the head part relative to the rotation axis of the counterweight mounting frame, and the locking end of the locking bolt is clamped with the first limiting hole;
under the condition that the counterweight mounting frame is located the second mounting position, the connecting portion is kept away from for the axis of rotation of counterweight mounting frame the header, the locking end of locking bolt with the joint is mutually blocked to the spacing hole of second.
The invention also provides a working machine comprising the counterweight displacement mechanism.
According to the counterweight displacement mechanism and the working machine, the counterweight is detached from the counterweight mounting frame, after the counterweight mounting frame is rotated and adjusted, the counterweight is lifted to the counterweight mounting frame through the jacking device to be mounted, so that the counterweight can be moved and adjusted.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic illustration of a work machine according to the present disclosure, wherein a counterweight mounting bracket is positioned in a first mounting position;
FIG. 2 is an enlarged schematic view at A in FIG. 1;
FIG. 3 is a schematic view of a portion of the work machine of FIG. 1;
FIG. 4 is an enlarged schematic view at B in FIG. 3;
FIG. 5 is a schematic view of a portion of the structure of FIG. 3;
FIG. 6 is a schematic illustration of the construction of the work machine of FIG. 1 with the counterweight mounting bracket in a second mounting position;
FIG. 7 is a schematic view of a portion of the work machine of FIG. 6;
reference numerals:
1: a frame; 2: a turntable; 21: a header;
22: tail part; 3: a counterweight mounting rack; 31: a connection part;
32: a first pin hole; 33: an abutting portion; 4: a counterweight;
41: a mating portion; 42: a second pin hole; 43: a V-shaped groove;
5: a jacking device; 6: a connecting pin shaft; 7: a pin shaft bracket;
8: a locking structure; 81: a connecting plate; 82: a first limiting hole;
83: a second limiting hole; 84: locking the bolt; 100: work machine.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The weight shift mechanism of the present invention, which can be used for a working machine such as a crane, a concrete pump truck, or a fire truck, will be described below with reference to fig. 1 to 7, taking the example in which the working machine is a crane.
Specifically, as shown in fig. 1 to 4, the weight-shifting mechanism includes a frame 1, a turntable 2, a weight-mounting frame 3, a weight 4, and a jacking device 5, the turntable 2 has a head 21 and a tail 22, the head 21 is connected to the frame 1, the head 21 and the tail 22 are opposite in the length direction of the turntable 2, the weight-mounting frame 3 is rotatably connected to the tail 22 along an axis in the up-down direction, the weight-mounting frame 3 is provided with a connecting portion 31, and the connecting portion 31 is located at one side of the rotation axis of the weight-mounting frame 3; the counterweight 4 is provided with a fitting portion 41 detachably connected to the connecting portion 31; the jacking device 5 is used for driving the matching part 41 to move up and down relative to the connecting part 31.
Specifically, when the adjustment weight 4 needs to be moved, the connecting portion 31 and the engaging portion 41 are detached, and the weight 4 is lowered by the jacking device 5; then, the counterweight mounting frame 3 is rotated and the counterweight 4 is translated by a hoisting device or the like of the working machine 100 such that the fitting portion 41 is opposed up and down to the connecting portion 31; and then lifting the counterweight 4 to the counterweight mounting frame 3 through the jacking device 5, so that the movable adjustment of the counterweight 4 can be realized.
According to the counterweight shifting mechanism provided by the invention, the counterweight 4 is detached from the counterweight mounting frame 3, after the counterweight mounting frame 3 is rotated and adjusted, the counterweight 4 is lifted to the counterweight mounting frame 3 through the jacking device 5, so that the movement adjustment of the counterweight 4 can be realized, the movement adjustment mode of the counterweight 4 occupies a small longitudinal space, and the counterweight mounting frame 3 does not need to be provided with a driving device, so that the counterweight mounting frame 3 is simple in structure, light in weight and easier to rotate.
The lifting device 5 can drive the matching part 41 to move up and down relative to the connecting part 31 in various ways, for example, the lifting device 5 is installed on the counterweight 4 and is in power coupling connection with the matching part 41, for example, the lifting device 5 is a telescopic cylinder, a cylinder rod of the telescopic cylinder is connected with the matching part 41, a cylinder body of the telescopic cylinder is fixedly connected with a main body of the counterweight 4, when the counterweight 4 is positioned below the counterweight mounting frame 3, a cylinder rod of the telescopic cylinder is driven to stretch out, so that the matching part 41 moves to the connecting part 31 of the counterweight mounting frame 3, and after the matching part 41 is fixedly connected with the connecting part 31, the cylinder rod of the telescopic cylinder is driven to shrink, so that the main body of the counterweight 4 can be lifted upwards; as shown in fig. 5 and 7, in this embodiment, the jacking device 5 is disposed below the frame 1 and located below the counterweight mounting frame 3, and the jacking device 5 jacks up and down the counterweight 4 integrally, so as to implement the up-and-down movement of the mating portion 41 relative to the connecting portion 31, where the jacking device 5 may be an oil cylinder, and the oil cylinder is a rodless cavity for oil feeding, and the oil cylinder is beneficial to implementing lightweight design and low cost.
As shown in fig. 4 and 5, in the present embodiment, two weight mounting frames 3 are provided, and the two weight mounting frames 3 are provided separately on both sides of the tail 22 in the width direction of the turntable 2; the two mating parts 41 are provided corresponding to the two weight mounting frames 3, and the two mating parts 41 are detachably connected with the two connecting parts 31, respectively. So that the weight 4 is more equally stressed.
The connection part 31 and the matching part 41 can be detachably connected in various ways, and the connection part 31 and the matching part 41 can be fixedly connected through a screw joint; as shown in fig. 2, 4 and 5, in this embodiment, the connection portion 31 and the mating portion 41 may be detachably connected by the connection pin 6; the connecting portion 31 is provided with a first pin hole 32 through which the connecting pin 6 passes, and the engaging portion 41 is provided with a second pin hole 42 through which the connecting pin 6 passes. The connection pin 6 is used for realizing the detachable connection between the connection part 31 and the matching part 41, so that the counterweight 4 is convenient to assemble and disassemble.
Further, as shown in fig. 2, in the present embodiment, the counterweight mounting frame 3 or the mating portion 41 is provided with a pin bracket 7, the connecting pin 6 has opposite first and second ends, and the first end of the connecting pin 6 is movably connected to the pin bracket 7 along the extending direction of the first pin hole 32; in the case where the fitting portion 41 is located at the first position and the connecting pin 6 is located at the first pin position, the second end of the connecting pin 6 passes through the first pin hole 32 and the second pin hole 42, and the connecting portion 31 is connected with the fitting portion 41; in the case where the connection pin 6 is located at the second pin position, both the connection portion 31 and the mating portion 41 are separated from the connection pin 6, and the connection portion 31 and the mating portion 41 are separable. As shown in fig. 2, the pin shaft bracket 7 is fixedly installed on the counterweight mounting frame 3, and the connecting pin shaft 6 is connected with the pin shaft bracket 7, so that the condition that the connecting pin shaft 6 is lost is not easy to occur.
As shown in fig. 4 and 5, in the present embodiment, the counterweight mounting frame 3 is provided with an abutting portion 33, the abutting portion 33 being located above the first pin hole 32; when the engaging portion 41 is located at the first position, the tip of the engaging portion 41 abuts against the abutting portion 33, and the first pin hole 32 and the second pin hole 42 face each other in the extending direction of the first pin hole 32; when the engaging portion 41 is located at the second position, the engaging portion 41 is located below the abutting portion 33. In the process of lifting the counterweight 4 by the lifting device 5, the abutment portion 33 can position the counterweight 4, so that the connecting pin 6 can be smoothly inserted to fix the counterweight 4.
Further, as shown in fig. 4 and 5, in the present embodiment, the abutting portion 33 is a positioning pin provided along the extending direction of the first pin hole 32; the top end of the fitting portion 41 is provided with a V-shaped groove 43 with a notch facing upward, and the V-shaped groove 43 penetrates the fitting portion 41 in the extending direction of the second pin hole 42; when the engaging portion 41 is located at the first position, at least part of the positioning pin extends into the V-shaped groove 43, and the positioning pin abuts against two opposite side walls of the V-shaped groove 43. By the limit fit of the positioning pin and the V-groove 43, the counterweight 4 can be prevented from shaking during operation.
As shown in fig. 2 and 5, in the present embodiment, a locking structure 8 is provided between the weight mount 3 and the tail 22 for restricting rotation of the weight mount 3 in the case where the weight mount 3 is rotationally adjusted to a preset mounting position. After adjusting the counterweight mounting frame 3, the locking structure 8 can prevent the counterweight mounting frame 3 from shaking.
Specifically, as shown in fig. 2 and 5, in the present embodiment, the locking structure 8 includes a connecting plate 81 and a locking pin 84, the connecting plate 81 is connected to the tail 22 and disposed downward, and the connecting plate 81 is penetratingly provided with a first limiting hole 82 and a second limiting hole 83; the locking bolt 84 is arranged along the rotation axis of the counterweight mounting frame 3, the locking bolt 84 is provided with a locking end facing the connecting plate 81 and a connecting end facing away from the connecting plate 81, and the connecting end of the locking bolt 84 is connected with the counterweight mounting frame 3 through an elastic piece; when the weight mounting frame 3 is located at the first mounting position, the connecting portion 31 is close to the head 21 relative to the rotation axis of the weight mounting frame 3, and the locking end of the locking bolt 84 is clamped with the first limiting hole 82; with the weight mount 3 in the second mounting position, the connecting portion 31 is away from the header 21 with respect to the rotation axis of the weight mount 3, and the locking end of the locking pin 84 is engaged with the second limiting hole 83. As shown in fig. 1 and 6, the longitudinal direction of the frame 1 is taken as the front-back direction, so that two weight mounting positions are formed on the frame 1 in front-back direction. Wherein, the frame 1 is provided with a plurality of jacking devices 5 corresponding to two counterweight installation positions, and the frame 1 is provided with a plurality of jacking devices 5 corresponding to each counterweight installation position along the width direction of the frame 1 at intervals, for example, as shown in fig. 7, the frame 1 is provided with two jacking devices 5 corresponding to each counterweight installation position along the width direction of the frame 1 at intervals.
The present invention also provides a work machine, which may be a crane, concrete pump truck, fire truck, or the like, as shown in fig. 1-7, the work machine 100 including a weight shifting mechanism as described above.
According to the working machine 100 provided by the invention, the counterweight 4 is detached from the counterweight mounting frame 3, after the counterweight mounting frame 3 is rotated and adjusted, the counterweight 4 is lifted to the counterweight mounting frame 3 through the jacking device 5, so that the movement adjustment of the counterweight 4 can be realized, the movement adjustment mode of the counterweight 4 occupies a small longitudinal space, and the counterweight mounting frame 3 does not need to be provided with a driving device, so that the counterweight mounting frame 3 is simple in structure, light in weight and easier to rotate.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (5)
1. A weight displacement mechanism, comprising:
a frame;
a turntable having a head portion and a tail portion, the head portion being connected to the frame, the head portion and the tail portion being opposed in a longitudinal direction of the turntable;
the counterweight mounting frame can be connected with the tail part in a rotating and adjusting manner along an up-down axis, and is provided with a connecting part which is positioned at one side of the rotating axis of the counterweight mounting frame;
the counterweight is provided with a matching part which is detachably connected with the connecting part; the method comprises the steps of,
the oil cylinder is used for driving the matching part to move up and down relative to the connecting part, and is arranged on the rack and positioned below the counterweight mounting frame; wherein, a plurality of oil cylinders are arranged on the rack at intervals along the width direction of the rack corresponding to each counterweight installation position; when the counterweight is adjusted in a moving way, the connecting part and the matching part are disassembled, the oil cylinder descends the counterweight and rotates to adjust the counterweight mounting frame, the counterweight is horizontally moved through a lifting device of the working machine, so that the matching part is opposite to the connecting part up and down, and the counterweight is lifted to the counterweight mounting frame through the oil cylinder;
the connecting part is detachably connected with the matching part through a connecting pin shaft; the counterweight mounting frame or the matching part is provided with a pin shaft bracket, the connecting part is penetratingly provided with a first pin hole for the connecting pin shaft to pass through, the matching part is penetratingly provided with a second pin hole for the connecting pin shaft to pass through, the connecting pin shaft is provided with a first end and a second end which are opposite, and the first end of the connecting pin shaft is movably connected with the pin shaft bracket along the extending direction of the first pin hole;
the counterweight mounting frame is provided with an abutting part, and the abutting part is positioned above the first pin hole; the abutting part is arranged along the extending direction of the first pin hole, a V-shaped groove with an upward notch is arranged at the top end of the matching part, and the V-shaped groove penetrates through the matching part in the extending direction of the second pin hole;
when the matching part is positioned at a first position and the connecting pin shaft is positioned at a first pin shaft position, the abutting part at least partially stretches into the V-shaped groove, the abutting part abuts against two opposite side walls of the V-shaped groove, the first pin hole and the second pin hole are opposite in the extending direction of the first pin hole, the second end of the connecting pin shaft penetrates through the first pin hole and the second pin hole, and the connecting part is connected with the matching part;
when the connecting pin shaft is positioned at the second pin shaft position, the connecting part and the matching part are separated from the connecting pin shaft, and the connecting part and the matching part can be separated; and the fitting portion is located below the abutment portion in a case where the fitting portion is located at the second position.
2. The weight shift mechanism according to claim 1, wherein two weight mounting frames are provided, the two weight mounting frames being provided on both sides of the tail portion in the width direction of the turntable;
the cooperation portion corresponds two the counter weight mounting bracket is provided with two, two cooperation portion respectively with two connecting portion can dismantle the connection.
3. A weight deflection mechanism according to claim 1 wherein a locking structure is provided between the weight mounting bracket and the tail for limiting rotation of the weight mounting bracket in the event that the weight mounting bracket is rotationally adjusted to a preset mounting position.
4. A weight deflection mechanism according to claim 3 wherein the locking structure comprises:
the connecting plate is connected with the tail part and arranged downwards, and a first limiting hole and a second limiting hole are arranged in the connecting plate in a penetrating manner; the method comprises the steps of,
the locking bolt is arranged along the rotation axis of the counterweight mounting frame and provided with a locking end facing the connecting plate and a connecting end facing away from the connecting plate, and the connecting end of the locking bolt is connected with the counterweight mounting frame through an elastic piece;
under the condition that the counterweight mounting frame is positioned at a first mounting position, the connecting part is close to the head part relative to the rotation axis of the counterweight mounting frame, and the locking end of the locking bolt is clamped with the first limiting hole;
under the condition that the counterweight mounting frame is located the second mounting position, the connecting portion is kept away from for the axis of rotation of counterweight mounting frame the header, the locking end of locking bolt with the joint is mutually blocked to the spacing hole of second.
5. A working machine comprising the weight displacement mechanism according to any one of claims 1 to 4.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110097818.XA CN112758845B (en) | 2021-01-25 | 2021-01-25 | Counterweight displacement mechanism and working machine |
| PCT/CN2021/119334 WO2022156251A1 (en) | 2021-01-25 | 2021-09-18 | Counterweight displacement mechanism and operating machine |
| EP21920629.9A EP4282808A4 (en) | 2021-01-25 | 2021-09-18 | Counterweight displacement mechanism and operating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110097818.XA CN112758845B (en) | 2021-01-25 | 2021-01-25 | Counterweight displacement mechanism and working machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112758845A CN112758845A (en) | 2021-05-07 |
| CN112758845B true CN112758845B (en) | 2023-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110097818.XA Active CN112758845B (en) | 2021-01-25 | 2021-01-25 | Counterweight displacement mechanism and working machine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4282808A4 (en) |
| CN (1) | CN112758845B (en) |
| WO (1) | WO2022156251A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112758845B (en) * | 2021-01-25 | 2023-07-28 | 三一汽车起重机械有限公司 | Counterweight displacement mechanism and working machine |
| CN115818471A (en) * | 2022-11-23 | 2023-03-21 | 湖南三一中型起重机械有限公司 | Counter weight mounting structure and engineering machinery |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120060008A (en) * | 2010-12-01 | 2012-06-11 | 두산인프라코어 주식회사 | Counterweight mounting/separating apparatus for construction machinery |
| CN102275836A (en) * | 2011-06-07 | 2011-12-14 | 湖南中联重科专用车有限责任公司 | Crane, clump weight loading and unloading mechanism for crane, and clump weight block |
| CN203439964U (en) * | 2013-08-19 | 2014-02-19 | 四川长江工程起重机有限责任公司 | Mounting mechanism for balancing weights of automobile crane |
| CN204096961U (en) * | 2014-08-28 | 2015-01-14 | 三一汽车起重机械有限公司 | Hoisting crane |
| CN105776020B (en) * | 2016-05-05 | 2017-07-28 | 三一汽车起重机械有限公司 | Crane and its counterweight mounting system, counterweight hooking method |
| DE202016005419U1 (en) * | 2016-09-05 | 2016-10-04 | Liebherr-Werk Ehingen Gmbh | Crane and counterweight for a crane |
| WO2020031842A1 (en) * | 2018-08-06 | 2020-02-13 | 株式会社タダノ | Crane |
| CN110775840B (en) * | 2019-10-31 | 2021-05-07 | 三一汽车起重机械有限公司 | Counter weight translation subassembly and hoist |
| CN111302243A (en) * | 2020-05-13 | 2020-06-19 | 三一汽车起重机械有限公司 | Crane |
| CN111591912A (en) * | 2020-06-23 | 2020-08-28 | 三一汽车起重机械有限公司 | Self-dismounting deflection counterweight device and crane |
| CN112758845B (en) * | 2021-01-25 | 2023-07-28 | 三一汽车起重机械有限公司 | Counterweight displacement mechanism and working machine |
-
2021
- 2021-01-25 CN CN202110097818.XA patent/CN112758845B/en active Active
- 2021-09-18 EP EP21920629.9A patent/EP4282808A4/en active Pending
- 2021-09-18 WO PCT/CN2021/119334 patent/WO2022156251A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| EP4282808A1 (en) | 2023-11-29 |
| EP4282808A4 (en) | 2024-07-10 |
| WO2022156251A1 (en) | 2022-07-28 |
| CN112758845A (en) | 2021-05-07 |
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